Car-truck.



S. F. MORRISON.

Patented Apr. 6, 1909.

Elwvantoz man s ra rns' SARDINE F. MORRISON, OF COLUMBUS, OHIO.

CAR-TRUCK.

Specification of Letters Patent.

Patented April 6, 1.909.

Appiiciation filed August 3,. 1908. Serial No. 446,668.

To all whom it may concern:

lumbus,in the county of Franklin and State of Ohio, have invented certain new and useful Im rovements in Oar-Trucks, of which the f'o owing is a s ecification.

My .invention re ates to the improvement of car trucks and the objects of my invention are to provide an improved construction of car truck frame embodying simplicity and strength; to so construct my improved truck frame as to permit of the side members thereof being cast in. one piece; to provide each car wheel with an independent axle and bearing, so-constructed as to admit of the wheels being interchangeable and to admit of one wheel being removed or changed without removing or interfering with the other wheels; to provide in connection with my improved frame an improved bolster construction and to roduce other improvements the details 0 which will be more fully pointed out hereinafter. These objects I accomplish in the manner illustrated in the accompanying drawin in which:

Figure 1 1s a side e evation of my improved truck frame, Fig. 2 is a plan view of the same, and, Fig. 3 is a partial section and partial end view the section being taken verticall through the center of one of the car whee and its bearings.

Similar numerals refer to similar parts throughout the several views. j

1 represent the op osing side frames of my improved truck, eac of which is formed of one piece of material and comprises a comparatively narrow central portion 1 from which extend bifurcated end portions 1. Within the bifurcation of each of the side frame members is journaled a car wheel 2 of the usual form, each of said car wheels being provlded with a central comparatively short axle 3, the s -indle extensions 3 of which bear in suitab e boxings 4 which are mounted 111 end recesses of the arallel arms 1 which are formed by the bifilrcation of the frame ends, Each of said end recesses which are indicated at 5, is adapted to have the boxing 4 sl-igdably inserted therein, in which osition theboxing is heldagainst outwar movement by an end closure or retainer bar 6 which is held between the outer ends of the arms 1'-by means of bolts 7 which pass through the outer end portions of said arms.

Opposite the inner or rear portion of each i of the wheels 2, I form an opening 8 in each I of the side frame members -1. Lalso provide a central vertical opening 9 in each of said side frame members and extending through the lower ends of these openings 9 and secured therein, are the ends of a bolster bearing bar 10 which extends between the side frames. 1 Extending through the u per portions of the openings 9 and secure in opposite sides thereof are arallel frame bars 11, the latter fitting in 0 sets of the openings 9 and being provided with enlarged or flanged end portions 11*, which engage sides of the side frames 1.

12 represents the bolster bar which extends loosely between the parallel frame bars 11 and which bears upon sprin s 13 which in turn bear upon the bearlng ar 10. The bolster 12 has that portion of its body which is between the inner faces of the side frames I raised and said raised portion is provided with a central socket projection 14 to facilitate the usual pivotal connection of the car therewith and with suitable car bearing pro: jections 15.

16 represent thebrake beams, the end portions of which extend in rear of each pair of car wheels, said brake beams being suspended from the side frames as indicated at 17, and rovided with the usual brake shoes '18, the latter being carried by said brake frames. The side frames are rigidly con-.1 nected at each end by a horizontal bar'or connecting member indicated at 19.

' In order to rovide a means of supplying oil to each of tl ie axles, I emplo oil conducting pipes 20 which are suitab y secured to the side frames and which, as shown, lead from points above the openings8 and on the outer side thereof downward, thence throu h said openings and along the inner sides oft e inner side frame arms 1, into the axle boxings.

From the construction herein shown and described, it will be seen that the one piece side frames of the truck, are of simple construction and of such form as to insure great strength. The bifurcated ends of these side frames provide means for "the inde endent bearing of each car wheel, thereby o viating the necessity of employing a comparatively long axle which carries a wheel at either end and which in case of breakage of the axle or injury to one of the wheels, requires the removal of both wheels.

,beams within the openings 8 of the side thence downward the outer i The construction herein shown, permits of the wheels being used interchangeabl T and also obviates the necessity whenone wheel is broken or injured, of substituting a wheel of exactl the same circumference as that employed on the opposite side of the truck.

hat I claim, is:

.1. Ina car truck, the combination with connected side truck frames, each of said side frames being formed of a single piece of material, the end portions of which are bifurcated, said bifurcated portions having boxing openin s, of bearin boxes in said openings, whee carrying ax es having bearings in said boxes, and a bolster between said frames:

2. In a car truck, the combination with connected side truck frames, each of said side frames being formed of a single piece of material and comprising a comparatively narrow central portion and outwardly ex.-

tending bifurcated end portions, the arms formed by said bifurcations having openings I therein, of bearing boxes in said openings, a

wheel carrying axle journaled in the bifurcated portion of each end of each of said side frames, and a spring supported bolster ex- 'matcrial and having its ends bifurcated, an

axle j ournaled in each of said bifurcated POI:- tions, and a car wheel carried by each of said axles, of a bolster bearingbar rigidly connecting the lower and central portions ofsaid side frames, parallel bars connecting said side frames on opposite sides of the center thereof, a car bearing bolster between said parallel bars, and springs between said bolster and said bolster bearing bar.

In testimony whereof I aflix my signature in presence of two witnesses.

. SARDINE F. MORRISON. Witnesses: p

L. CARL STOUGHTON, A. L. PHELPS. 

